JoBoEVD/UglifyJS
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2290 Commits

Author SHA1 Message Date
Mihai Bazon 26746ce316 Add --screw-ie option 
For now the implication is that UglifyJS will not leak a function
expression's name in the surrounding scope (IE < 9 does that).

(ref. mishoo/UglifyJS#485)
 2013-03-02 14:28:34 +02:00
Mihai Bazon dac6efb43d Drop last default: if it's the last branch and empty 
Close #141
 2013-03-01 13:12:03 +02:00
Mihai Bazon 8880f4824c Compress boolean constants after evaluation 
Close #137
 2013-03-01 10:26:06 +02:00
Mihai Bazon 3a591c43fe Fix compressing do {...} while (false) 
It's not safe to transform it to {...} because the body might contain
`break`.  The solution could be more elaborate (detect if body contains
`break`) but I don't think it's worth the trouble.

Close #129
 2013-02-19 18:12:19 +02:00
Mihai Bazon 916faf0a48 Force space after literal regexp when used in "instanceof" or "in" 
Close #118
 2013-02-06 11:57:59 +02:00
Mihai Bazon f36e4e9a78 Give up evaluating (unary-prefix '-' 0) 
Close #117

------

    JS, WHY YOU SUCK SO BADLY? ;-(
 2013-02-06 11:51:09 +02:00
Mihai Bazon fdf8b5eb71 Fix parens for NaN 
Close #116
 2013-02-06 11:38:29 +02:00
Mihai Bazon de7ec7f1b7 Fix parens for negative numbers 
Close #115
 2013-02-06 11:36:04 +02:00
Mihai Bazon 3c8a0bdff4 Fix parens for AST_New 
Close #114
 2013-02-06 11:28:49 +02:00
Mihai Bazon 9e8ba27dcd Fix handling of constants 
Close #113
 2013-02-06 11:15:31 +02:00
Mihai Bazon 719a8fd102 Ugly hack to print comments before return/throw statements 
Close #112
 2013-02-05 19:11:39 +02:00
Mihai Bazon a5b209470c Fix end token for Assign nodes 2013-02-01 13:32:15 +02:00
Richard Gibson 522566ea80 Fix #105: property comparison to undefined is not always safe 2013-01-23 23:52:04 -05:00
Mihai Bazon faa354f5ca [AST_Hole] the print function can be a no-op. 2013-01-17 11:36:10 +02:00
David Glasser 1529ab965a Fix output for arrays containing undefined values. 
1b6bcca7 was a first attempt at this. That commit made Uglify stop replacing
holes with undefined, but instead it started replacing undefined with
holes. This is slightly problematic, because there is a difference between a
hole and an undefined value. More problematically, it changed [1,undefined] to
[1,] which generally doesn't even parse as a hole (just as a trailing comma), so
it didn't even preserve the length of the array!

Instead, parse holes as their own special AST node which prints invisibly.
 2013-01-17 11:36:10 +02:00
Mihai Bazon f0909bdc8f Handle String() with no arguments. 
Fix #91
 2013-01-17 11:01:38 +02:00
Mihai Bazon 6b14f7c224 Fix handling of labels in nested scopes 2013-01-04 14:17:33 +02:00
Mihai Bazon 83a4ebfedc Implement -m sort=true 
close #83
 2013-01-02 12:39:00 +02:00
Mihai Bazon 9916d0e547 Accept string or number as name of an accessor. 
[not sure I'm happy about this fix]

Reference mishoo/UglifyJS#478
 2012-12-22 01:24:04 +02:00
Mihai Bazon 31c4a37e37 Optimize new Array(1, 2, 3) → [1, 2, 3] 
Close #74
 2012-12-21 21:04:35 +02:00
Mihai Bazon 08219f0cee Fix output when semicolons is off. 
(need to force a semicolon for the empty body of an `if`)

Close #72
 2012-12-21 11:57:08 +02:00
Mihai Bazon c4993e1e5c Small cleanup 2012-12-12 11:51:55 +02:00
Mihai Bazon 98978fc827 Add proper parens in "NoIn" expressions. 
fix #60.
 2012-12-06 12:27:57 +02:00
Mihai Bazon 16430acc1f small improvement on merging assignments into hoisted vars 2012-12-05 13:14:49 +02:00
Mihai Bazon 320c110b33 When hoisting variables, try to merge in assignments that follow. 2012-12-05 12:30:25 +02:00
Mihai Bazon 5cc90db7d0 Don't messup compressor stack while optimizing Switch 
Fix #59
 2012-11-30 11:16:09 +02:00
Mihai Bazon 13c4dfcabd fix #55 2012-11-24 10:02:08 +02:00
Mihai Bazon 4f555e2232 fix for https://github.com/mishoo/UglifyJS/issues/474 2012-11-23 10:20:00 +02:00
Mihai Bazon 089ac908b7 fix #51 2012-11-18 17:37:45 +02:00
Mihai Bazon 0d3fd2ef30 retain (1,eval) as is when it's the expression of an AST_Call 
otherwise we change the meaning of eval from global to lexical.
 2012-11-17 12:05:31 +02:00
Richard van Velzen e98119496a Add support for somewhat preserving line numbers. 
Usage: uglifyjs2 -b "beautify=0,preserve_line=1" /path/to/js

ref #46
 2012-11-14 15:30:18 +02:00
Mihai Bazon bdfcbf496b better solution for the last test in constant switch folding 2012-11-14 12:21:43 +02:00
Mihai Bazon dba8da4800 optimize constant switch blocks 
ref. mishoo/UglifyJS#441
 2012-11-14 12:06:07 +02:00
Mihai Bazon 60c0f40250 Merge branch 'optimize_concat' of https://github.com/rvanvelzen/UglifyJS2 into rvanvelzen-optimize_concat 2012-11-13 14:38:55 +02:00
Mihai Bazon e02771a5f2 don't change order in binary expressions if both operands have side effects 2012-11-13 14:32:07 +02:00
Richard van Velzen f96f796f71 Add simple optimization for empty-string concats. 
ref. #43
 2012-11-12 15:41:03 +01:00
Mihai Bazon 53355bdb24 fix invalid AST produced by dropping unused variable 
close #44
 2012-11-12 13:23:57 +02:00
Dan Wolff b49230ab8d convert x.toString() to ""+x instead of x+"" 
In some places this can save one byte in whitespace, e.g. after return.
Example:

function f(arg) {
        // return""+arg - no space between return and ""
        return arg.toString();
}
 2012-11-11 15:53:34 +02:00
Mihai Bazon 1e5e13ed81 AST_LabelRef no longer inherits from AST_SymbolRef 2012-11-08 15:39:14 +02:00
Mihai Bazon e312c5c2a7 fix API breakage 
close #36, #38
 2012-11-08 12:31:28 +02:00
Mihai Bazon 1a5fd3e052 optimization for if/break as first statement in a loop body 
for(...; x; ...) if (y) break; → for(...; x&&!y; ...);

similarly for `while` and some combinations (i.e. the `break` appears in the
`else` clause, etc.)
 2012-11-08 11:43:14 +02:00
Mihai Bazon 46be3f2bf1 fix another small regression 
we do need parens here: `new (foo.bar().baz)`, but not here: `new foo.bar.baz`
 2012-11-07 13:31:43 +02:00
Mihai Bazon 80da21dab4 fix regression from 5346fb94 (shouldn't parenthesize i++ in x[i++]) 2012-11-07 13:02:51 +02:00
Mihai Bazon 5276a4a873 add AST_Accessor and AST_SymbolAccessor node types 
AST_Accessor will represent the function for a setter or getter.  Since they
are not mangleable, and they should not introduce a name in scope, we have a
new node for their name (AST_SymbolAccessor) which doesn't inherit from
AST_SymbolDeclaration.

fix #37
 2012-11-07 12:43:27 +02:00
Mihai Bazon a1ae0c8609 parenthesize property access when it's the expression in New 
refs #35
 2012-11-07 12:26:33 +02:00
Mihai Bazon a90c1aeafe further fix for parens around New (refs #35) 2012-11-07 11:49:06 +02:00
Mihai Bazon ff388a8d2d parenthesize a Call expression when its parent is New 
fix #35
 2012-11-07 11:36:15 +02:00
Mihai Bazon 5346fb94bb add proper parens around unary expressions 
fix #34
 2012-11-07 11:23:50 +02:00
Mihai Bazon a4f6d46118 add option to mangle names even if eval/with is in use 
(for more fair comparison to Closure compiler)
 2012-11-06 18:19:51 +02:00
Mihai Bazon ffccb233e5 convert while into for 2012-11-05 16:01:20 +02:00